- Account has 3 states
- Pre-activated
- There are no transactions nor balance (empty, 0)
- Account can be only opened (and maybe viewed, but in readonly mode, we'll see)
- Opened
- There is a balance and transactions, the account is active
- Balance can be changed
- Closed
- Does not have any balance
- So far not implemented yet
- Has history of transactions (from the time it was opened)
- Cannot make any changes on closed account
- Pre-activated
- Changing balance should add a transaction to account
Soon I'm planning to:
- Implement ATM
- It will be able to deposit or withdraw money with it
And probably more to come. We'll see ;)
Simulate a bank account supporting opening/closing, withdrawals, and deposits of money. Watch out for concurrent transactions!
A bank account can be accessed in multiple ways. Clients can make deposits and withdrawals using the internet, mobile phones, etc. Shops can charge against the account.
Create an account that can be accessed from multiple threads/processes (terminology depends on your programming language).
It should be possible to close an account; operations against a closed account must fail.
Run the test file, and fix each of the errors in turn. When you get the first test to pass, go to the first pending or skipped test, and make that pass as well. When all of the tests are passing, feel free to submit.
Remember that passing code is just the first step. The goal is to work towards a solution that is as readable and expressive as you can make it.
Have fun!